| TT Cup (2020) | 2020/10/19 23:45 | Oleksandr Kostiuk v Stanislav Stelmashchuk | W | 0-3 |
| TT Cup Ukraine | 2020/07/23 20:45 | Stanislav Stelmashchuk v Oleksandr Kostiuk | L | 1-3 |
| TT Cup Ukraine | 2020/07/14 21:45 | Oleksandr Kostiuk v Stanislav Stelmashchuk | W | 0-3 |
| TT Cup Ukraine | 2020/07/08 07:30 | Stanislav Stelmashchuk v Oleksandr Kostiuk | L | 2-3 |
| TT Cup Ukraine | 2020/07/07 11:00 | Stanislav Stelmashchuk v Oleksandr Kostiuk | L | 0-3 |
| TT Cup (2020) | 2020/07/04 11:35 | Oleksandr Kostiuk v Stanislav Stelmashchuk | L | 3-1 |
| TT Cup Ukraine | 2020/07/04 11:00 | Oleksandr Kostiuk v Stanislav Stelmashchuk | L | 3-1 |
| TT Cup Ukraine | 2020/07/01 22:15 | Oleksandr Kostiuk v Stanislav Stelmashchuk | L | 3-1 |
| TT Cup Ukraine | 2020/10/24 13:20 | Stanislav Stelmashchuk v Bohdan Zdrobylko | L | 2-3 |
| TT Cup Ukraine | 2020/10/23 17:30 | Ivan Tymchyshyn v Stanislav Stelmashchuk | W | 2-3 |
| TT Cup Ukraine | 2020/10/23 16:55 | Stanislav Stelmashchuk v Roman Vakarash | L | 2-3 |
| TT Cup Ukraine | 2020/10/23 14:35 | Stanislav Stelmashchuk v Serhii Kunynets | L | 0-3 |
| TT Cup Ukraine | 2020/10/23 12:50 | Stanislav Stelmashchuk v Petro Tsolik | L | 1-3 |
| TT Cup Ukraine | 2020/10/22 16:55 | Stanislav Stelmashchuk v Roman Vakarash | L | 1-3 |
| TT Cup Ukraine | 2020/10/22 15:45 | Ivan Tymchyshyn v Stanislav Stelmashchuk | L | 3-1 |
| TT Cup Ukraine | 2020/10/22 15:10 | Stanislav Stelmashchuk v Roman Vakarash | W | 3-2 |
| TT Cup Ukraine | 2020/10/24 13:55 | Oleksandr Kostiuk v Mykola Tovkach | W | 3-2 |
| TT Cup (2020) | 2020/10/20 02:15 | Mykola Tovkach v Oleksandr Kostiuk | L | 3-1 |
| TT Cup (2020) | 2020/10/20 00:45 | Oleksandr Kostiuk v Mykola Tovkach | L | 2-3 |
| TT Cup (2020) | 2020/10/19 23:45 | Oleksandr Kostiuk v Stanislav Stelmashchuk | L | 0-3 |
| TT Cup (2020) | 2020/10/19 22:45 | Oleksandr Kostiuk v Bohdan Zdrobylko | W | 3-0 |
| TT Cup (2020) | 2020/10/19 21:45 | Oleksandr Kostiuk v Bogdan Stasiuk | W | 3-2 |
| TT Cup Ukraine | 2020/10/16 01:15 | Oleksandr Kostiuk v Volodymyr Tuchkevych | W | 3-1 |
| TT Cup Ukraine | 2020/10/16 00:15 | Sergey Gilitukha v Oleksandr Kostiuk | L | 3-0 |